Opus-Two is a common platform for Hauptwerk deployment.  If you have physical moving stops, the only choice you have to make is whether you want Opus-Two to store pistons and combinations or whether you want Hauptwerk to do that.

Opus-Two Runs The Console

  • All keys and stops and expression shoes are sent to Hauptwerk as logical midi messages.

  • When a piston is pressed, the upcoming stop changes are instantly sent to Hauptwerk and are updated before the stops even begin moving.

  • Opus-Two intelligently prioritizes MIDI traffic to prevent keying overload.

Opus-Two Does Nothing Smart

  • Every input pin is mapped to a logical MIDI channel to send to the PC/Mac

  • MIDI channels from the PC/Mac are mapped to stop coils so that Hauptwerk can drive stops on/off

  • Updates happen at the speed of Hauptwerk and the MIDI chain

We have frequently replaced competitors MIDI control systems (especially cheap DIY type kits found online) in Hauptwerk consoles in order to remove varying degrees of lag. The degree that an organist can tolerate imprecise timing in the controllers is generally related to their skill. Organists who are very precise tend to really struggle with “chained” MIDI devices that all introduce lag.

Opus-Two Hauptwerk kits are available with the boards pre-panelized, so that the end customer simply has to wire them.  We can provide the necessary crimp tools.

Both legacy and next generation architectures allow the follow features “out of the box” (no special programming or magic required):

  • Ability to handle many keyboards including second touch

  • Transposer (+/- 7 Semitones by default)

  • Lit Reversible Pushbottons can be controlled (they simply appear as stops in Hauptwerk)

  • Multiple Sforzandos (again, Hauptwerk just sees stops turning on and off)

  • General Piston Sequencer (including insert and delete)

  • 10,000 memory levels broken into folders (works well with each folder being assigned to a sample set).

  • Virtually unlimited number of stops can be controlled

  • Virtually unlimited number of pipes can be added later

Opus-Two is fully customizable.  Many systems have been implemented with custom code to complete various functions – even custom display interfaces.  If a customer is not comfortable custom-created their own interfaces through code, we gladly will do this for them.  Simply reach out to us and tell us what you want!

Sample Pricing (all prices include shipping within the US)

3 Manual + Pedal (4 IO cards)

Components Only $1850
Assumbled Panel $2050

Includes inputs for up to 41 pistons.  Does not have capacity for moving stops.

2 Manual + Pedal (3 IO cards)

Components Only $1585
Assembled Panel $1785

Includes inputs for up to 38 pistons.  Does not have capacity for moving stops.

3 Manual + Pedal + Stops (6 IO cards)

Components Only $2380
Assembled Panel $2580

Includes inputs for up to 57 pistons and 80 stops.

2 Manual + Pedal + Stops (5 IO cards) 

Components Only $2115
Assembled Panel $2315

Includes inputs for up to 38 pistons and 64 moving stops.

All control systems (including Hauptwerk Panel systems) include full printed documentation sent with the control system.  Each system includes a RapidFuse board. The documentation describes what wires connect to which pins.  For an additional $200 fee, a wiring starter kit can be provided.  This kit contains the crimp tools necessary for the insulation displacement connectors, a flush cutter, and a selection of zip ties, wire mounts, and screws.  Expedited shipping is available upon request.